Machine for sewing filled bags.



PATENTED DEC. 81, 1907. G. H. POSTER. MACHINE FOR SEWING FILLED BAGS.

APPLICATION FILED JUNE 14, 1902.

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No. 875,513. PATENTED DEC. 31, 1907.

G. H. FOSTER.

MACHINE FOR SEWING FILLED BAGS. APPLICATION FILED JUNE 14, 1902.

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cHARLEs H. ros'rnn, or unW'YoaK Y., ASSIGNOR T UNION SPECIAL SEWING MACHINE COMPANY, OF CHICAGO, ILLINOIS, A

CORPORATION OF ILLINOIS.

- MACHINE FOR SEWING FILLED BAGS.

Specification of Letters Patent.

Patented Dec. 31, 1907.

Application filed June 1%.1902. Serial No. 111.712-

To all whom it mag concern:

Be it kno'wn that I, CHARLES IIFosrEn,

iof New York, in the county of New York and State of New York, have invented, certain new and useful Improvements in Machines for Sewing Filled Bags; and I do hereby de,

clare that the following is a full, clear, and 'xact description. thereof, reference being had to the accompanying drawings, and to the' letters of reference marked thereon, which torm apart of this specification. I

My Invention relates to an Improvement In 'machines and apparatus for sewing filled.

stitches of the sewing machine are set, say

eight to the inch, as is'usual in sewing cloth sacks, or four, as is usual In sewing caper sacks, or for any other number as may be de' sired. Furthermore, it has been iound desirable to provide a simple arrangement for holding the cones of the ower transmitter in engagement to drive t e machine without necessitating the shifting of theieet oi" the .operator from floor to treadle and the like, Again, it hasbeen fojmd desirable to provide a cutting arrangement for cuttingoflf the.

chain of stitches between the bags which shall be'thrown into and out of operation by the operator, but the actual cutting'and returning action of which shall be automatic.

Theinvention, therefore, includes, in an apparatus for sewing filled sacks, an improvement in mechanism for taking up the slack in the conveying belt, a novel mechanism for driving the conveying belt, and a mechanism for throwing the driving mechanism for the conveying belt and sewing machine into and out of operation. All these details formpurt of the-apparatus for sewing filled bags and are hereinclaimed.

The invention is illustrated in the accomfpanying drawings, in which s Figure 1 is a front elevation oi so much of" an apparatus of the a type referred to as is 1 ecessary to a complete understanding of my invention; and Fig. 2 is a side elevation of the same.

lnthe drawings, the sewing mechanism is herein embodied in'asewing machine of the Union Special type such as illustrated in Pat-- I ents 547,675 and 547,67 6, of October 8th,

1895, and is represented by the letter A. It is attached to a table or ably v plication aforesaid. The driving shaft oft sewing machine is arranged vertically and the gooseneck C overhangs the edge of the table or support, the needle working in a horizontal plane.

cifically referred to.

On the under side of the table is en ported a counter shaft F having the usua ower transmitter and clutch mechanism, a elt a passing over one of the cone pulleys serving support B, prefer of the construction illustrated in my exp-- e These parts being of well known construction need not be more spe to transmit motion to the belt wheel on the driving shaft of the sewing machine. The bracket 'L which carries the-pulleys over which the conveying belt h is stretched and operates, dili'ers from that shown in the aforesaid application, in that it is provided with right and left extension brackets G, H. The right-hand extension Gis'guided in Ways n on the bracket i, and supportsthe shaftk o the'right-hand conveying belt pullpiy g.

The extension bracket can be ad-juste looseningthe bolt I and adjustingthe'screw i, which bears on the inner end or the exten sionbracket G, thus the slack in theconveyer-belt may be taken up as desired, or

shorter or longer belts may be used. r

A belt 6 runs from a small cone on th' driver over an idle pulley j to 'a pulley H'- on the upright shaft and transmits motion to the Worm whcelj'in the manner set forth in my aforesaid application. The shaft FF u on which the worm wheel is sup orted is a so provided with a sprocket whee L over which istrained a sprocket chain M which drives the, belt pulley g supported in the left-hand extension bracket H. Bv this arrangement a changein the speed ol the com veyer belt, commensurate with the number of stitches to the inch made by chine, may be effected, the sprocket Wheel the sewing mar,

L being removed and another substituted therefor.

T is board for supporting the conveys r belt and U an aim Said board T-is carried which slidingly engage the and pieces of the framework and said brackets together with "thesun'nortina board and conveve'r belt are 1. su porting the b ard. y suitable braiikets supported and moved vertic all b sprocket end of the lever 9 prevents said lever from chains located at each end of t e rame, one being withdrawn through the vertical lever,

end of said sprocket chain being connected to each bracket and the other end to a'suitblable counter-Wei ht.

passes over sproc et wheels near the upper "end of the frame which are mounted on acommon shaft-adapted to be operated by a hand crank. This matter is all clearly 10 Shown in my 00- ending a plication 59,822

' and will not nee further escription inthis connection.

M It "has been found in connection with the. sewing of large and heavy sacks that it is Verytires'ome for the operator to stand upon one leg while the other is upon the treadle to holdthe cones of the "power transmitter in engagement to drive the machine. This one foot has constantly to be changed from the treadle of the power transmitter. to the A v treadle of the cutter.

As a further and special'improvement in machines of this character and toavoid this 1nconvenience, l have provided a knee lever '25 N, which is adapted to oscillate the shaft 0,

'ou'r'naled in a bracket P and having an arm comiectied at its outer end through the rod or chain R with the operating arm of the I clutch lever S. This lever N may, of course,

'30 be manipulatedwby hand, if desired, but it is convenient to-haveit so arranged that when the attendant is standing in position to manipulate the apparatus, by ressure of. his

-' knee against the lever. the c ut'c'h may be held so that the parts are driven.

As a still further and special irn rovement in an apparatus of this character, have provided a novel arrangement forsevering the chain-of stitching after a sack has been 40 sewed, in a semi-automatic manner; Referring to the drawings, 1' is one of the band pulleys of the constantly revolvin member of the power transmitter which is tted with a belt which is trained over a pulley 2, supported upon'a shaft 3, journaled in bearings upon the bracket whichsu ports the sewing machine. U on this sha t 3 is fastened a Y disk4, prov'i ed with a rejecting pin 5, the shaft'and disk being, 0 course, constantly run along with the constantly running part of 1 the power transmitter.

' So far as the cutter itself is concerned, the arrangement is substantially the same as shown in my application for patent filed 55'A pri1 5,1899, Serial No. 711,801, in which a Noted lever 6 is adapted to engage at the end of the knife supporting shaft and force the lower end of the cylindrical bed plate of 6 0; the sewing machine. From the upper end of ivoted at 11 and. the seat for said lever 9 in the upper end movement of said vertical lever on its pivot. The upper end of the vertical lever is normally pressed outwardly by means of the spring 12. The vertical lever 10 at its lower end is pivoted to a horizontal'lever 13 which I has a downwardly projecting part 14 to which is attached a spring 15 normally re' taining the same in the position shown in the right hand dotted lines in Fig. 2. This hori* zontal lever is provided at its outer end with a notch or pro ection normally engaging the '80 pin 5 on the disk 4 and beyond the projection slants upwardly and is adapted to. be brought into engagement with a roller 16 on the bracket 17, whereby in the upward movement of the horizontal lever it is swung on its .85. pivot and tripped out of en agernent with the pin 5. At its forward en the horizontal I lever is adapted to be engaged .by a -pin.20 whichis tripped 'by a bell-crank lever 21. journaled on the bracket 17; When the bell-c 'ank lever'is moved to draw back they pin 20 the horizontal lever through the action of the lower spring is forceddownwardly, so that its notch engagesthe pin 5 and said horizontal lever is then swung rearwardly carrying also the lower end of the -vertical lever 10 thus forcing the up or end of the vertical lever forward against't 1e pre sure of its spring',--and causing the knife to o erate to cut the chain of stitching. -When 10( t e beveled end of the horizontal lever rides up overthe pin 20, it is forced out of engagement' withsaid pin 5 and the parts are returned to normal position by the action of the two springs. ,This cutting apparatus 10: forms the subject matter of another application filed by me ontlie 26th day of January 1903, Serial No. 140,647. l 1 'Various minor mod'fications and changes may be made without departing from the spirit of my invention. Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a filled bag sewing ap aratus, the combination with a support' fi ame, a sewing machine supported'there and having its head overhanging said time, stitch forming mechanism carried by said head, a vertically adjustable support beneath said stitch formingmecl ianism, a conveying belt I 1 I y carried by said support, me ansfor ti htening it downagainst an anvil 7 supported upon combination withasuitabe we, of the no sewing mechanism the 'elements of which overhang the top of said frame, a vertically ad justable sup ort beneath said sewing mechanisni and or greater length than said fra brackets'upon said support, pulleys upon said brackets and a conveyer belt trained oversaid dpulleys, one of said brackets being lon 3. In a filled bag sewing apparatus, the

ally adjustable; substantially as decombination with a suitable frame, of the sewing mechanism the elements of which overhang the top of said frame, a vertically adjustable support beneath said sewing mechanism and of greaterlength than said frame, brackets upon said supper s, pulleys upon said brackets, and a conveyer belt trained over said pulleys, one of said brackets being guided in ways on the support, an end screw for adjusting the-bracket longitudinall and'means for securing it; in adjusted,

position; substantially as described.

, adjustable sup ort' beneath said sewing me'chanism, pul eys carried by said support',. ,a conveyer belt trained over said pulleys;

means 101' driving the convey er belt, comprising two parallel shafts having sprocket wheels thereon; one having a gear connection wlth the driving mechanism of the machine,

and the other on the shaft carrying one of the eonveyer belt pulleys, and a s rocket ,chain connecting the two wheels; su )stantially as described.

In a'filled bag sewing apparatus, [the] combination with a suitable frame, of the: sewing mechanism, the elements of which! overhang the top of said frame,

a vertically 5. In a filled bag sewing apparatus the combination with a suitable frame of a sewing mechanism the elements of which overhang the top of said frame, a bag table beneath said sewing vmechanism, an endless conveyer belt upon said table, common drivanism, an endless conveyer belt upon said table, common-driving means for said sewing mechanism and the conveyer belt, apower transmitter, engage and disengage the parts to be driven, and a startingshifter projecting from said 1 table for movement laterally by the leg of the operator, and connections between the shifting lever and the clutch, said connections ina clutch for causing the same to eluding the shaft O, the arm-V and the connection R substantially as described.

In testimony that I claim the foregoing as my invention I affix my signature in presence of twowitnesses, this 24th day of MayfA D.

. CHARLES H. FOSTER. Witnesses:

DANIEL W. COREY, OHAs. N. Moons. 

